CN104832827B - Light source module and display device - Google Patents
Light source module and display device Download PDFInfo
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- CN104832827B CN104832827B CN201410279705.1A CN201410279705A CN104832827B CN 104832827 B CN104832827 B CN 104832827B CN 201410279705 A CN201410279705 A CN 201410279705A CN 104832827 B CN104832827 B CN 104832827B
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- light
- guide
- transmission medium
- lighting end
- light transmission
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- 230000003287 optical effect Effects 0.000 claims description 9
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- 235000009566 rice Nutrition 0.000 claims 1
- 239000007789 gas Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a light source module and a display device. The at least one light-emitting element is suitable for emitting light beams, and the light-emitting element is arranged beside the light guide plate. The light guide plate comprises a first surface, a second surface and a light incident surface, wherein the second surface is opposite to the first surface, and the light incident surface is connected with the first surface and the second surface. The at least one first light guide end portion and the at least one second light guide end portion are located on one side, with the light incident surface, of the light guide plate, the first light guide end portion is located in front of the light emitting element, and the second light guide end portion is connected with the first light guide end portion. The first light-transmitting medium is arranged at least at the first light-guiding end portion on the first surface, and the refractive index of the first light-transmitting medium is larger than that of a medium or space located at the second light-guiding end portion on the first surface.
Description
Technical field
The invention relates to a kind of optical device and image device, and in particular to a kind of light source module and display
Device.
Background technology
Due to making rapid progress for Display Technique, lightening consumer electronic product is, for example, mobile phone, panel computer, TV
All it is main flow in the market Deng multimedia video and audio device.Lightening display device is also primary concern in AV device
One of design, applies display device e.g. liquid crystal display device, the electrophoretic display apparatus etc. in lightening design now.
In lightening display device design, the lightening of light source module (including front optical module or backlight module) is all
A big problem therein.And in a display device, reflective display panel can have the collocation of front optical module.With display device
Volume constantly reduce and cost savings trend under, light-emitting component (such as light emitting diode (Light Emitting
Diode, abbreviation LED)) due to the distribution of its position, can cause to be irradiated to the light of display panel via light guide plate in irradiation
The uniformity is not enough or light guide plate outgoing light homogeneity is not enough, causes light guide plate immediately ahead of above-mentioned light-emitting component and is close to light
There is bright spot and dim spot can be formed between bright spot and bright spot in the part in face, also causes the visible area in existing display device
Picture shown by (active area) is presented the situation of brightness irregularities, so as to reduce picture quality.Accordingly, it would be desirable to a kind of
The light source module and the display device with uniform light-out effect of uniform source of light can be provided.
The content of the invention
The present invention provides a kind of light source module and display device, and light source module can provide the area source with high evenness,
Display device can provide good picture, and can lift the uniformity of image brilliance.
One embodiment of the invention provides a kind of light source module, light source module include at least one light-emitting component, light guide plate,
At least one first guide-lighting ends, at least one second guide-lighting ends and the first light transmission medium.Light-emitting component is suitable to send light
Beam, and light-emitting component configuration is by light guide plate.Light guide plate includes first surface, second surface and incidence surface, second surface phase
For first surface, and incidence surface connection first surface and second surface.First guide-lighting end having into light positioned at light guide plate
The side in face, and positioned at the front of light-emitting component, and the second guide-lighting end has the side of incidence surface positioned at light guide plate, and with the
One guide-lighting end connection.First light transmission medium, at least configure on the first surface positioned at the first guide-lighting end, wherein first
The refractive index of light transmission medium is more than the medium or the refractive index in space positioned at the second guide-lighting end on first surface.
One embodiment of the invention provides a kind of display device, and display device includes display panel and light source module, its
Middle light source module configuration is square on a display panel.Light source module includes at least one light-emitting component, light guide plate, at least one first
Guide-lighting end, at least one second guide-lighting ends and the first light transmission medium.Light-emitting component is suitable to send light beam, and light-emitting component
Configuration is by light guide plate.Light guide plate include first surface, second surface and incidence surface, second surface relative to first surface,
And incidence surface connection first surface and second surface, wherein one of first surface and second surface towards display panel, and first
Surface is another back to display panel with second surface.Guide-lighting end is located at the side with incidence surface of light guide plate, and is located at
The front of light-emitting component, and the second guide-lighting end is located at the side with incidence surface of light guide plate, and be connected with the first guide-lighting end.
First light transmission medium, at least configure on the first surface positioned at the first guide-lighting end, wherein the refraction of the first light transmission medium
Rate is more than the medium or the refractive index in space positioned at the second guide-lighting end on first surface.
In one embodiment of this invention, light-emitting component is multiple light-emitting components, and the first guide-lighting end is led for multiple first
Light end, these first guide-lighting ends are alternately arranged with the second guide-lighting end along incidence surface.
In one embodiment of this invention, light source module also includes the second light transmission medium, and it is on first surface
Positioned at the medium of the second guide-lighting end, wherein the second light transmission medium is connected with the first light transmission medium.
In one embodiment of this invention, the second light transmission medium is printing opacity glue-line.
In one embodiment of this invention, the medium positioned at the second guide-lighting end on first surface be air,
Gas or liquid.
In one embodiment of this invention, light guide plate has a visible area, visible area near the edge of incidence surface with it is luminous
Distance between element on the direction parallel to first surface is 0 millimeter to 0.5 millimeter.
In one embodiment of this invention, light source module also includes cover sheet, cover sheet configuration in first surface or
Second surface top.
In one embodiment of this invention, display device also includes cover sheet, and wherein light guide plate configuration is in cover sheet
And between display panel.
In one embodiment of this invention, light source module also includes the 3rd light transmission medium, and the 3rd light transmission medium is at least configured
On a second surface positioned at the first guide-lighting end, wherein the refractive index of the 3rd light transmission medium is more than being located on second surface
Positioned at the medium or the refractive index in space of the second guide-lighting end.
In one embodiment of this invention, the 3rd light transmission medium also configure on a second surface positioned at the first guide-lighting end
And the second region beyond guide-lighting end.
In one embodiment of this invention, light source module also includes the 4th light transmission medium, and it is on second surface
Positioned at the medium of the second guide-lighting end, wherein the 4th light transmission medium is connected with the 3rd light transmission medium.
In one embodiment of this invention, the first light transmission medium is printing opacity glue-line.
In one embodiment of this invention, the first light transmission medium also configure on the first surface positioned at the first guide-lighting end
And the second region beyond guide-lighting end.
In one embodiment of this invention, display panel is reflective display panel.
In one embodiment of this invention, refractive index of the refractive index of the first light transmission medium less than light guide plate.
Based on above-mentioned, the light source module in embodiments of the invention can be by the in light guide plate first guide-lighting end and second
The refractive index different designs of the surface dielectric of guide-lighting end eliminate the bright spot and dim spot that existing light source module is formed, and use
Lift the uniformity of irradiation.In addition, including the display device of above-mentioned light source module in the embodiment of the present invention also by uniform
Irradiation provides good picture quality.
It is that features described above of the invention and advantage can be become apparent, special embodiment below, and it is detailed to coordinate accompanying drawing to make
Carefully it is described as follows.
Brief description of the drawings
Fig. 1 is the top view of light source module in the first embodiment of the present invention；
Fig. 2A is according to Fig. 1 the midsagittal plane lines I1I1' sectional drawing；
Fig. 2 B are according to Fig. 1 the midsagittal plane lines I2I2' sectional drawing；
Fig. 3 is the stereogram of light source module in Fig. 1；
Fig. 4 is the stereogram of display device in another embodiment of the present invention；
Fig. 5 A are according to Fig. 4 the midsagittal plane lines I3I3' display device partial cross-sectional view；
Fig. 5 B are according to Fig. 4 the midsagittal plane lines I4I4' display device partial cross-sectional view；
Fig. 6 is the stereogram of display device in another embodiment of the present invention；
Fig. 7 A are according to Fig. 6 the midsagittal plane lines I5I5' display device partial cross-sectional view；
Fig. 7 B are according to Fig. 6 the midsagittal plane lines I6I6' display device partial cross-sectional view；
Fig. 8 A are the stereograms of display device in another embodiment of the present invention；
Fig. 8 B are according to Fig. 8 A the midsagittal plane lines I7I7' display device partial cross-sectional view；
Fig. 9 A are the stereograms of display device in another embodiment of the present invention；
Fig. 9 B are according to Fig. 9 A the midsagittal plane lines I8I8' display device partial cross-sectional view；
Figure 10 A are the stereograms of display device in the second embodiment of the present invention；
Figure 10 B are the explosive views of display device in Figure 10 A.
Description of reference numerals：
A：Visible area；
D：Distance；
I1I1’、I2I2’、I3I3’、I4I4’、I5I5’、I6I6’、I7I7’、I8I8’：Tangent plane line；
100：Light source module；
110、410A：First light transmission medium；
111A、111B：Light transmission medium；
120：Light-emitting component；
121A、121C、123A、123C：Light beam；
140：Light guide plate；
142A、142B、142C、142D、162A、182A、182C：First surface；
143：Micro-structural；
144A、144B、144C、144D、164A、184A：Second surface；
146：Incidence surface；
150：Cover sheet；
160：First guide-lighting end；
180：Second guide-lighting end；
200：Display panel；
300A、300B、300C、300D、300E：Display device；
410B：3rd light transmission medium；
420A：Second light transmission medium；
420B：4th light transmission medium.
Specific embodiment
Fig. 1 is the top view of light source module in the first embodiment of the present invention, and Fig. 2A is according to Fig. 1 the midsagittal plane lines I1I1'
Sectional drawing, Fig. 2 B are according to Fig. 1 the midsagittal plane lines I2I2' sectional drawing, and Fig. 3 is the stereogram of light source module in Fig. 1.Refer to
Fig. 1, Fig. 2A and Fig. 2 B, the light source module 100 of the present embodiment include at least one light-emitting component 120 (herein with the luminous unit of multiple
As a example by part 120), light guide plate 140, wherein light guide plate 140 have first surface 142A, second surface 144A and incidence surface 146, and
There are at least one first guide-lighting ends 160 and at least one second being alternately arranged in side of the light guide plate 140 with incidence surface
Guide-lighting end 180 (herein by taking the multiple first guide-lighting ends 160 and multiple second guide-lighting ends 180 as an example).It is important to explanation
It is that the first guide-lighting end 160 is configured in the front of light-emitting component 120 in the present embodiment, and the second guide-lighting connection of end 180 the
One guide-lighting end 160.Fig. 1 and Fig. 3 is refer to, in the present embodiment, the first light transmission medium 110 is configured on first surface 142A
Locate at the first guide-lighting end 160 and beyond the first guide-lighting guide-lighting end 180 in end 160 and second, and the first printing opacity is situated between
The refractive index of matter 110 is, for example, air more than medium on the first surface 142A of the second guide-lighting end 180.For further,
The sectional drawing of Fig. 2A shows the tangent plane structure comprising the in the present embodiment first guide-lighting end 160, and the tangent plane of Fig. 2 B is illustrated
Tangent plane structure comprising the in the present embodiment second guide-lighting end 180, wherein first surface 162A, second surface 164A be respectively
Correspond to the part of the first guide-lighting end 160 in first surface 142A, second surface 144A, and first surface 182A, the second table
Face 184A is respectively in first surface 142A, second surface 144A the part for corresponding to the second guide-lighting end 180, uses under collocation
The narration in face clearly illustrates the present embodiment.
Fig. 1, Fig. 2A and Fig. 2 B are refer to, in the first embodiment of the present invention, light-emitting component 120 is suitable to send light beam and arrives
Incidence surface 146, above-mentioned light beam includes e.g. light beam 121A and light beam 123A.Light beam 121A is entering light guide plate in the present embodiment
Reflected by second surface 164A after 140, the light beam 121A after reflection reaches the first surface for being configured with the first light transmission medium 110
162A, because the refractive index of the first light transmission medium 110 causes light more than medium on first surface 182A (being, for example, here air)
Beam 121A is easier to penetrate out first surface 162A.Comparatively, in the present embodiment light beam 123A enter light guide plate 140 after easily
The first surface 142A of visible area A is penetrated after being reflected by second surface 184A and first surface 182A again.For further, this
Embodiment makes first surface 162A and first surface 182A have different reflectivity by the configuration of the first light transmission medium 110
(Reflectance) the first guide-lighting end for allowing and penetrating the front of light-emitting component 120 and critical angle (critical angle), is used
The light beam in portion 160 is easier just to pass light guide plate 140 before visible area A is reached, and allows the light beam for penetrating the second guide-lighting end 180
Easily it is reflected to the luminance-reduction that visible area A just passes close first guide-lighting end 160 in light guide plate 140, therefore visible area A
And near the luminance raising of the second guide-lighting end 180, and then eliminate bright spot, dim spot and its influence that is brought and increase light source die
The outgoing light homogeneity of block 100.In more detail, Fig. 1 is refer to, light-emitting component 120 is close to visible area A in the present embodiment
The distance between the edge of smooth surface 146 D is 7 millimeters to 12 millimeters, but not limited to this.
In the first embodiment of the present invention, above-mentioned light-emitting component 120 is, for example, light emitting diode (Light Emitting
Diode, abbreviation LED), but not limited to this.In other embodiments, light-emitting component 120 can also be Organic Light Emitting Diode
(Organic Light Emitting Diode, abbreviation OLED) etc. other be suitable to send the element of light beam.On the other hand, this reality
Applying also has multiple optical microstructures 143 on the first surface 142A of example, but not limited to this.The micro- knot of optics in other embodiments
Structure 143 can also configure the first surface 142A or second surface 144A in light guide plate 140, and wherein optical microstructures 143 are suitable to
Light is allowed to pass light guide plate 140 in the place for corresponding to visible area A.In another embodiment, optical microstructures 143 can also be same
When configuration on the first surface 142A and second surface 144A of light guide plate 140.
In the first embodiment of the present invention, the medium on first surface 182A is air, but not limited to this.In other realities
Apply in example, the medium on first surface 182A can be other gases, liquid or solid light-transmitting materials, its refractive index is less than first
The refractive index of light transmission medium 110.Furthermore, it is understood that first light transmission medium 110 of the present embodiment is printing opacity glue-line.Further to
Say, the refractive index of first light transmission medium 110 of the present embodiment is not limited to more than air and less than the refractive index of light guide plate 140
This.
Fig. 4 is the stereogram of display device in another embodiment of the present invention, and Fig. 5 A are according to Fig. 4 the midsagittal plane lines I3I3'
The partial cross-sectional view of display device, Fig. 5 B are according to Fig. 4 the midsagittal plane lines I4I4' display device partial cross-sectional view, wherein Fig. 4
Light-emitting component 120 in order to clearly show that the structure of light guide plate without showing.Refer to Fig. 4, Fig. 5 A and Fig. 5 B, the present embodiment
Display device 300A there is light source module and display panel 200, and this side light source module similar to the light source module in Fig. 1
100, its difference is that the light source module of the present embodiment also has cover sheet 150, and its configuration is in the first light transmission medium 110
Top.In this example it is shown that panel 200 is located at the lower section of light guide plate.It is more detailed to say, the second surface of the present embodiment
144B is provided with cover sheet 150 towards display panel 200 above first surface 142B, it is suitable to protect the first printing opacity
Medium 110.The present embodiment is that the design and effect of light source module other details are identical with the first embodiment of the present invention, wherein
Fig. 5 A can correspond to Fig. 2A, and Fig. 5 B can correspond to Fig. 2 B.That is, the sectional drawing of Fig. 5 A is shown comprising this implementation
The tangent plane structure of the first guide-lighting end in example, and the sectional drawing of Fig. 5 B shows cutting comprising the in the present embodiment second guide-lighting end
The first light transmission medium 110 in face structure, and the similar first embodiment of the present embodiment is configured, thus its effect to be reached and
Details is also repeated no more herein.In addition, display panel 200 is, for example, reflective display panel in the present embodiment, but it is not limited to
This.In other embodiments of the present invention, display panel 200 can also be penetration display panel or half penetrated display panel.
The light of the high evenness that display panel 200 (namely reflective display panel) can be provided by light source module in the present embodiment
To provide good display picture.
Fig. 6 is the stereogram of display device in another embodiment of the present invention, and Fig. 7 A are according to Fig. 6 the midsagittal plane lines I5I5'
The partial cross-sectional view of display device, Fig. 7 B are according to Fig. 6 the midsagittal plane lines I6I6' display device partial cross-sectional view, wherein Fig. 6
Light-emitting component 120 in order to clearly show that the structure of light guide plate 140 without showing, and Fig. 7 A sectional drawing show comprising this
The tangent plane structure of the first guide-lighting end in embodiment, and the sectional drawing of Fig. 7 B is shown comprising the in the present embodiment second guide-lighting end
Tangent plane structure.Fig. 6, Fig. 7 A and Fig. 7 B are refer to, the element similar to first embodiment of the invention is with phase in the present embodiment
Indicated with label, wherein the configuration of each similar components is also repeated no more herein.The different place of the present embodiment is light guide plate 140
First surface 142C and the relations that configure each other of second surface 144C, in the present embodiment cover sheet 150 configure
Second surface 144C tops, and first surface 142C is towards display panel 200.In other words, the light guide plate 140 of the present embodiment is matched somebody with somebody
Put between cover sheet 150 and display panel 200, and the first light transmission medium 110 is configured on first surface 142C, that is,
Between light guide plate 140 and display panel 200.Refer to Fig. 7 A and Fig. 7 B, the light beam that light-emitting component 120 sends in the present embodiment
In there is the part to penetrate the first guide-lighting end of light guide plate 140, e.g. light beam 121C, due to there is the first light transmission medium 110 to match somebody with somebody
Put, therefore light beam 121C is easy to pass first surface 142C after light guide plate 140 is entered, that is, light beam 121C is easy to entering
Light guide plate 140 is corresponded to and will pass before the region of visible area A light guide plate 140, so reduce the front of light-emitting component 120 can
The brightness of vision area A.In addition, there is the part to penetrate the second of light guide plate 140 in the light beam that light-emitting component 120 sends in the present embodiment
Guide-lighting end, e.g. light beam 123C, it is saturating due to being configured without first on the first surface 182C for corresponding to the second guide-lighting end
Optical medium 110, light beam 123C is easy to be reflected to light guide plate 140 and corresponds to the region of visible area A and just passes light guide plate 140, enters
And lift the brightness of the partial visual area A of the neighbouring second guide-lighting end.In other words, the present embodiment passes through the first light transmission medium
110 configuration changes the reflectivity and critical angle of interface between display panel 200 and light guide plate 140, thereby come lifted can
The picture quality of the uniformity of irradiation and display device 300B in vision area.
Fig. 8 A are the stereograms of display device in another embodiment of the present invention, and Fig. 8 B are according to Fig. 8 A the midsagittal plane lines I7I7'
The partial cross-sectional view of display device.Refer to Fig. 8 A and Fig. 8 B, display device 300C and Fig. 6, Fig. 7 A and Fig. 7 B of the present embodiment
Display device 300B in shown embodiment is similar, and its difference is that the present embodiment also has light transmission medium 111A,
It is covered on second surface 144D.Specifically, the light transmission medium 111A of the present embodiment is configured in cover sheet 150 and leaded light
Between plate 140, and light transmission medium 111A covers light guide plate 140, and the refractive index of wherein light transmission medium 111A is small in the present embodiment
In the refractive index of the first light transmission medium 110, but not limited to this.In other embodiments, the refractive index of light transmission medium 111A can be with
It is same or different from the refractive index of the first light transmission medium 110.For further, the light transmission medium 111A of the present embodiment is, for example,
Printing opacity glue-line, but not limited to this, in other embodiments light transmission medium 111A can also be it is any be suitable to cover second surface
The liquid of 144D, solid or gas light transmission medium.
Fig. 9 A are the stereograms of display device in another embodiment of the present invention, and Fig. 9 B are according to Fig. 9 A the midsagittal plane lines I8I8'
The partial cross-sectional view of display device.Refer to Fig. 9 A and Fig. 9 B, display device 300D and Fig. 4, Fig. 5 A and Fig. 5 B of the present embodiment
Display device 300A in shown embodiment is similar, and its difference is that the present embodiment also has light transmission medium 111B,
It is covered on second surface 144E.Specifically, the light transmission medium 111B of the present embodiment is configured in display panel 200 and leaded light
Between plate 140, and light transmission medium 111B covers light guide plate 140, and the refractive index of wherein light transmission medium 111B is small in the present embodiment
In the refractive index of the first light transmission medium 110, but not limited to this.In other embodiments, the refractive index of light transmission medium 111B can be with
It is same or different from the refractive index of the first light transmission medium 110.For further, the light transmission medium 111B of the present embodiment is, for example,
Printing opacity glue-line, but not limited to this, in other embodiments light transmission medium 111B can also be it is any be suitable to cover second surface
The liquid of 144E, solid or gas light transmission medium.
Figure 10 A are the stereograms of display device in the second embodiment of the present invention, and Figure 10 B are display devices in Figure 10 A
Explosive view.Figure 10 A and Figure 10 B are refer to, in this example it is shown that device 300E includes display panel 200, light-emitting component
120th, cover sheet 150, light guide plate 140, the first light transmission medium 410A, the second light transmission medium 420A, the 3rd light transmission medium 410B,
4th light transmission medium 420B.First light transmission medium 410A is configured between cover sheet 150 and light guide plate 140 except corresponding to the
Region beyond two guide-lighting ends 180, and the second light transmission medium 420A configurations are right between cover sheet 150 and light guide plate 140
Should be to the region of the second guide-lighting end 180.3rd light transmission medium 410B configurations are removed between display panel 200 and light guide plate 140
The region beyond the second guide-lighting end 180 is corresponded to, and the 4th light transmission medium 420B configurations are in display panel 200 and light guide plate
The region of the second guide-lighting end 180 is corresponded between 140.In the present embodiment, the first light transmission medium 410A and the second printing opacity are situated between
Matter 420A is printing opacity glue-line, wherein refractive index of the refractive index of the first light transmission medium 410A more than the second light transmission medium 420A,
But not limited to this.In other embodiments, the second light transmission medium can also be that other are suitable to the gas of printing opacity, liquid or solid,
Refractive index of its refractive index less than the first light transmission medium.In the present embodiment, the 3rd light transmission medium 410B and the 4th light transmission medium
420B is printing opacity glue-line, wherein refractive index of the refractive index of the 3rd light transmission medium 410B more than the 4th light transmission medium 420B, but
Not limited to this.In other embodiments, the 4th light transmission medium can also be that other are suitable to the gas of printing opacity, liquid or solid, its
Refractive index of the refractive index less than the 3rd light transmission medium.In the present embodiment, by the configuration of above-mentioned multiple light transmission mediums, leaded light is made
Two surfaces that plate 140 corresponds to the first guide-lighting end 160 are easy to allow light beam to pass light guide plate 140 before visible area is entered,
And two surfaces for corresponding to the second guide-lighting end 180 are easy to reflect the light onto visible area before visible area is entered and just pass
Light guide plate 140, thereby eliminates in visible area bright spot, the dim spot influence because produced by the position of light-emitting component 120.
In sum, at least one printing opacity is situated between on the first surface and second surface that embodiments of the invention pass through light guide plate
The position configuration of matter makes to have different reflectivity in diverse location on same surface, uses the part allowed immediately ahead of light-emitting component
Light guide plate light extraction is less, and it is more to correspond to the part light guide plate light extraction between light-emitting component, therefore can eliminate light guide plate and lean on
Bright spot and dim spot on the side of nearly light-emitting component, and make the light extraction of light source module evenly.In addition, by above-mentioned light source die
Block can allow display device to provide better picture.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (25)
1. a kind of light source module, it is characterised in that including：
At least one light-emitting component, is suitable to send light beam；
Light guide plate, wherein at least one light-emitting component are configured by the light guide plate, and the light guide plate includes：
First surface；
Second surface, relative to the first surface；And
Incidence surface, connects the first surface and the second surface；
At least one first guide-lighting ends, positioned at the side with the incidence surface of the light guide plate, and positioned at least one hair
The front of optical element；
At least one second guide-lighting ends, positioned at side with the incidence surface of the light guide plate, and with this at least one first
Guide-lighting end connection：And
First light transmission medium, configuration on the first surface positioned at least one first guide-lighting end, and be also disposed at
The region beyond at least one first guide-lighting end and at least one second guide-lighting end on the first surface, its
In first light transmission medium refractive index more than on the first surface positioned at least one second guide-lighting end
Medium or the refractive index in space.
2. light source module according to claim 1, it is characterised in that at least one light-emitting component is multiple luminous units
Part, at least one first guide-lighting end is the multiple first guide-lighting ends, those first guide-lighting ends with this at least one second
Guide-lighting end is alternately arranged along the incidence surface.
3. light source module according to claim 1, it is characterised in that also including the second light transmission medium, its be positioned at this
The medium positioned at least one second guide-lighting end on one surface, wherein second light transmission medium is situated between with first printing opacity
Matter is connected.
4. light source module according to claim 3, it is characterised in that second light transmission medium is printing opacity glue-line.
5. light source module according to claim 1, it is characterised in that on the first surface positioned at this at least one
The medium of the second guide-lighting end is air, gas or liquid.
6. light source module according to claim 1, it is characterised in that the light guide plate has visible area, and the visible area is being leaned on
Distance between the edge and at least one light-emitting component of the nearly incidence surface on the direction parallel to the first surface is 0 milli
Rice is to 0.5 millimeter.
7. light source module according to claim 1, it is characterised in that also include：
Cover sheet, configures above the first surface or the second surface.
8. light source module according to claim 1, it is characterised in that also include：
3rd light transmission medium, at least configure on the second surface positioned at least one first guide-lighting end, wherein should
The refractive index of the 3rd light transmission medium is more than the medium positioned at least one second guide-lighting end on the second surface
Or the refractive index in space.
9. light source module according to claim 8, it is characterised in that the 3rd light transmission medium is also disposed at the second surface
On the region beyond at least one first guide-lighting end and at least one second guide-lighting end.
10. light source module according to claim 8, it is characterised in that also including the 4th light transmission medium, its be positioned at this
The medium positioned at least one second guide-lighting end on two surfaces, wherein the 4th light transmission medium is situated between with the 3rd printing opacity
Matter is connected.
11. light source modules according to claim 1, it is characterised in that first light transmission medium is printing opacity glue-line.
12. light source modules according to claim 1, it is characterised in that the refractive index of first light transmission medium is led less than this
The refractive index of tabula rasa.
A kind of 13. display devices, it is characterised in that including：
Display panel；And
Light source module, configures above the display panel, and the light source module includes：
At least one light-emitting component, is suitable to send light beam；
Light guide plate, wherein at least one light-emitting component are configured by the light guide plate, and the light guide plate includes：
First surface；
Second surface, relative to the first surface, wherein one of the first surface and second surface towards the display panel, and
The first surface is another back to the display panel with the second surface；And
Incidence surface, connects the first surface and the second surface；
At least one first guide-lighting ends, positioned at the side with the incidence surface of the light guide plate, and positioned at least one hair
The front of optical element；
At least one second guide-lighting ends, positioned at side with the incidence surface of the light guide plate, and with this at least one first
Guide-lighting end connection：And
First light transmission medium, configuration on the first surface positioned at least one first guide-lighting end, and be also disposed at
The region beyond at least one first guide-lighting end and at least one second guide-lighting end on the first surface, its
In first light transmission medium refractive index more than on the first surface positioned at least one second guide-lighting end
Medium or the refractive index in space.
14. display devices according to claim 13, it is characterised in that at least one light-emitting component is multiple luminous units
Part, at least one first guide-lighting end is the multiple first guide-lighting ends, those first guide-lighting ends with this at least one second
Guide-lighting end is alternately arranged along the incidence surface.
15. display devices according to claim 13, it is characterised in that also including the second light transmission medium, it is positioned at this
The medium positioned at least one second guide-lighting end on first surface, wherein second light transmission medium and first printing opacity
Medium is connected.
16. display devices according to claim 15, it is characterised in that second light transmission medium is printing opacity glue-line.
17. display devices according to claim 13, it is characterised in that on the first surface positioned at this at least one
The medium of the individual second guide-lighting end is air, gas or liquid.
18. display devices according to claim 13, it is characterised in that the light guide plate has visible area, the visible area exists
Distance between the edge and at least one light-emitting component of the incidence surface on the direction parallel to the first surface is 0
Millimeter is to 0.5 millimeter.
19. display devices according to claim 13, it is characterised in that also include：
Cover sheet, the wherein light guide plate are configured between the cover sheet and the display panel.
20. display devices according to claim 13, it is characterised in that also include：
3rd light transmission medium, at least configure on the second surface positioned at least one first guide-lighting end, wherein should
The refractive index of the 3rd light transmission medium is more than the medium positioned at least one second guide-lighting end on the second surface
Or the refractive index in space.
21. display devices according to claim 20, it is characterised in that the 3rd light transmission medium is also disposed at second table
The region beyond at least one first guide-lighting end and at least one second guide-lighting end on face.
22. display devices according to claim 20, it is characterised in that also including the 4th light transmission medium, it is positioned at this
The medium positioned at least one second guide-lighting end on second surface, wherein the 4th light transmission medium and the 3rd printing opacity
Medium is connected.
23. display devices according to claim 13, it is characterised in that first light transmission medium is printing opacity glue-line.
24. display devices according to claim 13, it is characterised in that the display panel is reflective display panel.
25. display devices according to claim 13, it is characterised in that the refractive index of first light transmission medium is led less than this
The refractive index of tabula rasa.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103104283 | 2014-02-10 | ||
| TW103104283A TWI544254B (en) | 2014-02-10 | 2014-02-10 | Light source module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104832827A CN104832827A (en) | 2015-08-12 |
| CN104832827B true CN104832827B (en) | 2017-06-30 |
Family
ID=53774785
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410279705.1A Active CN104832827B (en) | 2014-02-10 | 2014-06-20 | Light source module and display device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9733418B2 (en) |
| CN (1) | CN104832827B (en) |
| TW (1) | TWI544254B (en) |
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| TWI588544B (en) * | 2015-09-23 | 2017-06-21 | 元太科技工業股份有限公司 | Front light module and display module |
| CN106555949B (en) * | 2015-09-23 | 2019-09-10 | 元太科技工业股份有限公司 | Front optical module and display module |
| CN106228144B (en) * | 2016-08-02 | 2023-10-13 | 京东方科技集团股份有限公司 | Fingerprint identification display device |
| CN107680482B (en) * | 2017-09-29 | 2021-04-06 | 北京小米移动软件有限公司 | Display module and electronic device |
| US11256019B2 (en) * | 2019-06-14 | 2022-02-22 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
| TWI707187B (en) * | 2019-07-03 | 2020-10-11 | 元太科技工業股份有限公司 | Light guide module and display module having the same |
| CN213240740U (en) * | 2019-09-16 | 2021-05-18 | 神盾股份有限公司 | Backlight module applied to display panel |
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Also Published As
| Publication number | Publication date |
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| US20150226898A1 (en) | 2015-08-13 |
| TW201531768A (en) | 2015-08-16 |
| TWI544254B (en) | 2016-08-01 |
| US9733418B2 (en) | 2017-08-15 |
| CN104832827A (en) | 2015-08-12 |
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